Padlock.



A. A. PAGE. PADLOCK. APPLICATION FILED FEB.27,1913

mum;

mnnmr WITNESSES:

Patented Aug. 11,1914.

, UNITED STATES PATENT oEErCE.

AIQIBEBITLPAGE, CE EAsT HAVEN, CoNNECTICUT, AssICNon To SARGENT &COMPANY, OF N W HAVEN, C N ECTICUT, AcoRroEATIoN 0E CCNNECTICUT.

IEADLOCK.

i Specification of Letters Patent.

ramm n 11, 1914.

East Haven, county of New Haven, and

StateofConnecticut, have invented certain new and useful Improvements 1nPadlocks,

of which the following is a full, clear, and

exact description. 1

This invention relates to padlocks, and more particularly to padlockshaving sliding shackles or hasps.

The primary object of the invention is to provide a simple, efficientform of padlock combining maximum security with maximum ease andcheapness of manufacture. 1 v

To this and other ends the invention consists in the novel features andcombinations of parts to be hereinafter described and claimed; 1

In the accompanying drawing, Figure 1 is a side elevation of a padlockembodying my invention, the shackle being closed, Fig. 2 is a viewsimilar to Fig. 1, with one of the case sections and the key escutcheonremoved, Fig. 3 is a view similar to Fig. 2, but showing the tumblerpartly released by the key, Fig. 4 is a similar view, showing theshackle in its open position, Fig. 5 is an edge view of Fig. 2 taken atan angle to the longitudinal axis of the shackle, Fig. 6 is afragmentary section on line 6 -6 of Fig.

5 looking upward, Fig. 6 is a section on the same section line lookingdownward, Fig. 7 is a detail side view of the tumbler, detached, Fig. 8is a detail bottom view of the tumbler, Fig. 9 is a detail perspectiveview of the ward, Fig. 10 is a detail perspective view of the keyescutcheon, and Fig. 11 is a detail of the key.

Referring to the drawing, the casing 20 of the padlock therein shown, isof generally circular shape and divided, as usual, into sections 21 and22. The sections 21 and 22 are secured together by the usual posts 23,24 and 25. The case is cut away at one edge, as shown at 26, to create arecess in which a shackle 27 is slidable. The shackle 27 is providedwith a shank 28 within the case and a hook-shaped head 29 slidable intoand out of the recess 26. The shank 28 of the shackle is guided inthecase by means of the post 24 and the shackle is normally held by aspring 30 in the outwardly projected position shown in Fig. 4. Thespring A. PACE, a

30 is constituted by a coil of spring wire connected at one end with thepost 23 and at the other end with a hook 31 on the inner end of theshank 28. i 1

The shackle 27 is locked in its innermost 'posltlon (Figs. 1 to 3) bymeans of a pivoted tumbler 32. This tumbler may be conveniently mountedon the pin or post 25, and 1t 1s arranged to swing in the plane of theshackle toward and away from oneedge of the shank 28. A spring 33interposed between the outer edge of the tumbler 32 and the wall of thecase urges the tumbler toward the shackle so that a shoulder 34 on theintermediate portion of the tumbler may engage a cooperating shoulder 35projecting laterally from the shank 28 whereby the shackle will belocked in its closed pos1t10n.

Associated with the free end of the pivoted tumbler 32 is a ward 36(Fig. 9). This ward is preferably stamped up from a single piece ofsheet metal into substantially U-shape. One legfiof the U is. providedwith lugs 37 adapted to enter correspondingly shaped holes in the casesections, as shown in Fig. 1, so that after the ward has been placed inposition between the case sections and the latter have been securedtogether by the posts 23, 24 and 25 the ward will be rigidly heldagainst displacement. The same leg of the U-shaped sheet metal member isalso formed to present a ward portion 38 adapted to be cleared bynotches 39 of a suitably bitted key .40 (Fig. 11). The other leg of theU-shaped sheet metal piece is formed with a perforated lug 41 adapted toreceive the reduced end 42 of the key and thereby constitute a keybearmg.

The key 40 is insertible through a key escutcheon 43 interposed betweenthe case sections 21, 22 at a point out of alinement with the axis ofthe shackle, and it will be noted that the key escutcheon and the wardmember 36 are so arranged that the keyway is sub stantially in the planeof the shackle, with its axis directed at an acute angle to the axis ofthe latter. The free end portion 44 of the tumbler 32 overlies the wardmember 36, as 105 when the shackle is in the open position. The 110 endportion 44 of the tumbler is of reduced thickness as compared to thebody portion thereof and-at-itsufider u faeaimmeqi ay over the keyreceiving portion of the ward member 36, it is provided with a taperedshoulder or surface 47 adapted to be engaged by the bit 48 of the k in tt bearing 41'."-

- The operation of thedevice is substantially as follows: Supposing thatthe shackle is closed, as shown in Figs. 1 and 2, and it is desired toopen the' padlock, the key 40 is inserted in thema'nner shown in Fig. 8;The shank of the key is of sinuous cross-section and the, keyhole 43.?bfthe es'cutcheon or plug 43 is of corresponding shape so that a falsekey, will not be admitted; The inner reduced end 42 of the key seats inthe bearing 41 and as the key is turned on its axis the notches39 cleathe Ward portion 88 and enable' the" bit 48 to engage'the beveledshoulder 47 on the extremity of the tumbler 32; Asthe shoulder 47 is.substantially parallel'to tlie'key' bit and as the key extends at anacute angleto the general direction of the tumbler32fthe engagement ofthe key bit with the shoulder4 7 1 Will" cause thetumbler to'bethrownout-g Wardly. with're'spect to the shank of" the shackle, asshown in Fig. 3. As thejtunibler continuesit's outward movement theshoulder 34 thereof will disengage the shoulder 85' of the shackle,'ancl'the'shackle will thereupon be immediately projected into its openpos'ition bythe spring 30, as shown inFig. 4 As the tumbler is releasedby the key,"th'e tumbler will be returned to its initial position bythe' spring The shoulder 45' on theend of thetulnbler will engage theshoul- (161' or abutment 46 onthe' wardmember, as

.1 shown in'Fig. 4. In this position an inclined surface at one edge ofthe tumbler shoulder 34 will lie in the path of a similar inclined h eiss tatedi I ,Withdut'limiting t li k s is Pu h inwars th shel l ler 35will en ag mesht1der34jani thereby u'sh snaps over to theother side ofthe shoulder 3 5 "at which time the shackle will again be locked in itsclosed position. v V

myself to the construction shown, I claim-:3

1. In a padlock, the combination of a shackle, a pivoted tumblercooperating therewith, and a substantially U-shaped wardniemberiextendingbeneath the free extremity of said tumbler and having,oppositelyextending. lugs .td position ifibetwn' the case sections;substantially as described; v w 2. ln-apadloclgthe combination withseparate case sections and means. to secure them together, of asubstantially u-shap'edimembe'r held place between said, sections "andhaving a key bearing at: one side, aind'a Ward portion at the other side;"sub s tantial;lym as? described.

" 3. In a padlock, the combination of a shackle, a pivoted tumbler;cooperating there;- with, and a member lying beneath the free end ofsaid tumbler' and having a key hearing and stopshoulder for the tumbler;substantiallyas escrihed'. T t

4. In a padlock, the combination of a shackle, a pivoted tumbler,cooperating therewith,a nd a single member adj acentthe" free end ofsaid tumbler'havingja key bearinga ward portion and a stop shoulder-forthe tumbler; substantially as described;

" Inwitness"whereof-,"I have hereunto-set U hand? on'the'2 5 th day ofFebruary 1913'. est- 1 1 NVit'nesses:

FRANCES I-IowAm),

' MARJORIE A Copies of this patent may be obtained for'filvfceiits each,by aiidre sing the Commissioner of Patents, X.-,, z y' m; .-u r I, a y:1

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